38397390 has 32 divisors (see below), whose sum is σ = 97575840. Its totient is φ = 9636864.

The previous prime is 38397389. The next prime is 38397391. The reversal of 38397390 is 9379383.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38397389) and next prime (38397391).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38397391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37135 + ... + 38154.

It is an arithmetic number, because the mean of its divisors is an integer number (3049245).

Almost surely, 2^38397390 is an apocalyptic number.

38397390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38397390 is an abundant number, since it is smaller than the sum of its proper divisors (59178450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38397390 is a wasteful number, since it uses less digits than its factorization.

38397390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75316.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 38397390 is about 6196.5627568839. The cubic root of 38397390 is about 337.3654223390.

The spelling of 38397390 in words is "thirty-eight million, three hundred ninety-seven thousand, three hundred ninety".